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Solutions to browser compatibility issues

巴扎黑Original: 2017-07-22 17:53:061770browse

一、需要兼容那些浏览器

根据用户群体决定兼容哪些浏览器：

（1）面向普通用户

IE8+，Chrome,Firefox

(2)企业级产品

IE9+，Chrome,Firefox

如何了解浏览器市场份额：

百度统计：

二、浏览器兼容方案

1、css层叠原理

1 div {2                 display: -webkit-box;3                 display: -webkit-flex;4                 display: -moz-box;5                 display: -ms-flexbox;6                 display: flex7             }

如上面代码所示，同一个属性，后面书写的值会覆盖前面书写的值，并且对于浏览器无效的属性值会被忽略。

2、条件注释

针对IE6，IE7，IE8，IE9的条件注释，见如下代码：

<!--[if lt IE 7]><html class=&#39;ie6&#39;><![endif]--><!--[if IE 7]><html class=&#39;ie7&#39;><![endif]--><!--[if IE 8]><html class=&#39;ie8&#39;><![endif]--><!--[if IE 9]><html class=&#39;ie9&#39;><![endif]--><!--[if (gt IE 9) | !(IE)]><!-->    <html class=&#39;W3C&#39;><!--<![endif]-->

效果：

（1）chrome下：

（2）IE下（如IE8）：

这样就可以针对不同的浏览器做兼容性处理了，如：

1 .ie8 .selector{2                 /*样式*/3             }

3、CSS hack

具体示例见如下代码：

 1 <!DOCTYPE html> 2 <html lang="zh"> 3  4     <head> 5         <meta charset="UTF-8" /> 6         <title>CSS Hack</title> 7         <style type="text/css"> 8             * { 9                 margin: 0;10                 padding: 0;11             }12             13             .tip {14                 /*chrome显示blue*/15                 background: blue;16                 /*IE8 显示red \9对IE8-6有效*/17                 background: red\9;18                 /*IE7 显示black *前缀对IE7、IE6有效*/19                 *background: black;20                 /*IE6 显示orange _前缀对IE6有效*/21                 _background: orange;22             }23         </style>24     </head>25 26     <body>27         <div class="tip">28             12329         </div>30     </body>31 32 </html>

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